On Fri, Jul 12, 2013 at 05:51:04AM +0000, WangChen wrote: > I'm writing a driver for OSRFX2 learning board to test bulkloop > read/write. What's wrong with the existing usb-serial driver that can easily do this? > I think non-blocking write is good for such device due to > the FX2 chipset has dual-buffer for bulk endpoints. I am just > wondering if I also need to support blocking write IO due to I used to > think from driver perspective, for example for the read/write > operations, we need to support both blocking and nonblocking by > default. As you control the userspace interaction to the device, you can decide on this, right? Also, why even write a kernel driver at all for this, why not just use libusb or usbfs directly from userspace? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
